Hardware Implementation of Forward Converter with Active Clamp Reset Technique

In Defense and Aerospace applications, particularly at the lower input voltage the required duty cycle to regulate the output voltage is greater than 50%. In order to overcome this problem in traditional forward converter, many a times active clamp reset technique is used to reset the power transformer. Using active clamp reset technique duty cycle greater than 50% and lower voltage stress across the switching device is obtained and there will be an improved efficiency of the converter. Therefore a high switching frequency DC to DC converter is necessary in miniaturizing power supply. Motivated by these requirements, the project work is undertaken. In this paper Forward converter with active clamp and different practical aspects of the proposed converter are discussed with the hardware results.